[meteorite-list] Re: Two Questions

From: Robert Verish <bolidechaser_at_meteoritecentral.com>
Date: Tue May 24 14:37:28 2005
Message-ID: <20050524183718.95282.qmail_at_web51712.mail.yahoo.com>

Hello Walter,

It is my understanding that the gases trapped in the
Los Angeles meteorite are "mantle-derived".
 
Hard to find references that explain how Martian
"atmospheric" gases differ from "mantle-derived"
gases, but there is a good discussion about gases and
water near the end of this web page:

http://www.mpch-mainz.mpg.de/~kosmo/members/waenke/opus.htm

And there is a section in this paper that has more
recent results:

http://www.lpi.usra.edu/publications/MSR/MSR.pdf

Bob V.

-----------------------------------------------------
Walter Branch wrote:

> Second try at posting this email:
>
> Hello Everyone,
>
> I been researching but I can't find the answers to
> two questions.
>
> First, what is the mechanism by which atmospheric
> gasses are trapped in the formation of basalts?
> I have been doing some lit reviews on martian
> meteorites and I find it interesting that some
> were formed in magma chambers deep undergound.
> Indeed, some are thought to have formed several
> kilometers down. How does the Martian atmosphere
> get trapped in cooling rock so far underground.
>
+++++++++++
>
> -Walter Branch
>
Received on Tue 24 May 2005 02:37:18 PM PDT